Secondary swimming pool filter run in tandem with a swimming pool skimmer and methods for marketing and using said secondary filter

ABSTRACT

A secondary pool filter apparatus for use in filtering swimming pool debris and configured such that the filter can be substantially “flush-mounted” within a conventional pool skimmer channel so as to minimize the possibility of swimmers or other objects in a pool bumping into the filter. The filter comprises a liner having a main body adapted for removing floating debris from swimming pool water and a biasing element for enabling continuing operation of said skimmer system and to prevent the filter from backing out of a skimmer channel and floating or sinking. The filter main body and the biasing element are configured such that the filter has a substantially universal fit for use in many conventional swimming pool skimmer channels. A method for marketing a secondary pool filter apparatus run in tandem with a swimming pool skimmer comprises determining a market for the secondary pool filter apparatus run in tandem with a swimming pool skimmer channel having a given configuration and marketing the secondary pool filter apparatus having a configuration which matches the swimming pool skimmer channel configuration. A method for using a secondary pool filter apparatus run in tandem with a swimming pool skimmer comprises using a secondary pool filter apparatus having a configuration which matches a swimming pool skimmer channel having a given configuration and inserting the secondary pool filter apparatus having at least one flange into the swimming pool skimmer channel until the at least one flange is flush with a swimming pool wall.

FIELD OF INVENTION

[0001] This invention relates generally to a filter apparatus for removing debris and the like from a body of water, and more specifically, to a secondary swimming pool filter run in tandem with a conventional swimming pool skimmer and being configured to be installed in a swimming pool skimmer channel inlet for trapping floating leaves, algae, insects, and other debris so as to help prevent excessive debris from reaching the pool's built-in skimmer basket.

BACKGROUND OF THE INVENTION

[0002] The prior art has long recognized the need for a filtering device adapted to efficiently remove excessive debris from swimming pool water before the debris reaches the pool skimmer in order to minimize the possibility of floating debris burdening the pool water circulation system.

[0003] Many conventional swimming pools are designed with built-in skimming systems. These systems typically include a surface water inlet or “skimmer channel inlet” built into the side of the swimming pool to allow surface water to enter the skimmer channel. Water typically flows into the channel and over a weir gate device—which is adapted for improving water flow—and then into a skimmer basket which is positioned so as to collect any debris. The skimmer basket helps prevent debris from flowing into the circulation system and reaching the pool pump.

[0004] Usually, however, the skimmer basket is not readily accessible and it may not be positioned so that it is easy to see when the basket is full of or clogged with debris such as leaves, trash, insects, dirt, or oils and the like. For example, during the autumn season or in certain other circumstances, large quantities of leaves and miscellaneous debris may fall into the pool, float along the surface and into the skimmer channel, and quickly fill up the skimmer basket requiring that it be emptied several times daily. If the skimmer becomes clogged with debris such as leaves or dirt, the skimmer may prevent water flow through the circulation system and to the pool pump causing the pump to burn out.

[0005] In addition, to remove and clean out the skimmer basket, a lid or cover built into the pool deck generally must be unscrewed or removed. With many conventional pools, to even inspect the skimmer basket to see if it is full of debris or clogged, the access cover must first be removed. Moreover, pool safety measures suggest that the cover be locked down or secured with fasteners to prevent children—especially toddlers—from removing the cover and possibly injuring themselves. Clearly with such lock-down access covers or the like, it would be very time-consuming and difficult to access the built-in skimmer basket for visual inspection, emptying, and maintenance. Moreover, after removing the access cover, generally a person must then reach down through skimmed water residue and into the skimmer basket in order to retrieve it and empty out the debris. This requires several steps and sometimes requires that a person kneel down on the pool deck in order to remove the cover over the skimmer basket; doing this several times a day can be bothersome and tedious.

[0006] There have been prior art devices adapted to be mounted over and around the skimmer channel inlet in order to serve as a “pre-filter” and to remove debris prior to it reaching the pool skimmer. However, many of these devices are designed such that they protrude out into the swimming area of the pool, thereby creating a potential safety hazard for swimmers. In addition, removing these “pre-filter devices” for cleaning can be cumbersome and awkward. Exemplary of such devices are those shown in U.S. Pat. No. 4,426,286 to Puckett et al., entitled “Skimmer” and U.S. Pat. No. 5,833,845 to Anderson, entitled “Leaf Skimmer System.” The Puckett '286 patent discloses a skimmer system with a strainer basket that must be installed by first placing it through the skimmer channel and into a passageway and then snapping it into position in a horizontal mode. Moreover, in order to empty debris and the like from the strainer basket, a person would apparently need to kneel down and reach his or her hand through the skimmer channel—and into the skimmed water residue—in order to retrieve the basket. In the Anderson '845 patent, a rectangular frame is adapted to be mounted to the side of the swimming pool and over the skimmer channel inlet. However, this device protrudes out into the swimming area and could be bumped into by swimmers or knocked loose from its mounting hardware.

[0007] Another device, as shown in U.S. Pat. No. 4,140,634 to Harry, entitled “Swimming Pool Skimmer Shield,” addresses the need for pre-filtering of debris from the surface of a swimming pool prior to the debris reaching the skimmer basket. However, this device also mounts over the skimmer channel or throat and protrudes into the swimming area. Moreover, this device includes a large net-like structure for entrapping leaves and debris and is suspended from the frame of the skimming device; over time, however, this netting material may be susceptible to deterioration and possibly being ripped and would be awkward and cumbersome to readily detach and clean out.

[0008] There are several other prior art devices adapted for pool skimming including the following: U.S. Pat. No. 5,911,875 to Benvenuto et al., entitled “Pool Skimming Net”; U.S. Pat. No. 5,439,600 to Pasoz, entitled “Apparatus and Method for Removal of Floating Debris”; U.S. Pat. No. 4,089,074 to Sermons, entitled “Leaf Skimmer for Pools”; and an advertising publication by Nursery Pro which describes a skimmer adapted to float in ponds or pools. Unfortunately, these prior art devices have only partially addressed some of the problems as mentioned above specifically related to removing excessive debris from swimming pool water prior to it reaching the built-in skimmer system.

[0009] While most of the above-described devices have been constructed for use in filtering swimming pool debris, it seems that these prior art devices have not given sufficient attention to the need for a swimming pool filter which can be substantially “flush-mounted” within the skimmer channel so as to minimize the possibility of swimmers or other objects in a pool bumping into the filter.

[0010] In addition, it would be a benefit to have a pool filter device or apparatus that has an integrally unified liner structure which is relatively simple to manufacture. It would be a further benefit to have such an apparatus with a substantially universal-fit configuration such that one or two configurations fit a variety of pool skimmer channels. It would also be of further benefit for such an apparatus to have not only a light color to contrast with the typically darker color of filtered debris such as leaves and insects, but also to have a substantially wide-open entrance such that the filter may be inspected from a distance to visibly confirm whether or not the filter is full or clogged with debris. It would be a another benefit to have a pool filter which could be more easily inserted into, and removed from, a skimmer channel using a handle so as to facilitate frequent installation and removal for cleaning and maintenance. It would be a still further benefit to have a pool filter with a uniquely adapted handle extension to enable a user to install and remove the filter without having to reach into the skimmed water residue—possibly containing lotions and oils, worms, insects, snakes or other undesirable debris or objects.

BRIEF DESCRIPTION OF DRAWINGS

[0011] For a further understanding of the nature of the present invention, reference should be had to the following brief description of the drawings, wherein:

[0012]FIG. 1 is a perspective, isometric view of a wedge-shaped secondary swimming pool filter according to the present invention adapted to be run in tandem with a conventional swimming pool skimmer, and wherein the filter includes both a liner having a main body and also a biasing element such that both the main body and the biasing element are configured for removing floating debris from pool water;

[0013]FIG. 1A is a front, isometric view of a conventional swimming pool skimmer channel also having a wedge-shaped configuration which can accommodate the filter according to FIG. 1;

[0014]FIG. 2 is a top plan view of the filter according to FIG. 1, as it might appear installed into a swimming pool skimmer channel if the pool decking and coping were removed;

[0015]FIG. 2A is a front, elevated view of the filter according to FIG. 1;

[0016]FIG. 2B is a fragmentary cross-sectional view of an alternative embodiment of the biasing element according to the present invention being slottably mounted to the upper rim of the liner side wall (taken in a plane suggested by the lines 2B-2B in FIG. 2);

[0017]FIG. 2C is a top plan view of an alternative embodiment of the filter according to the present invention having a rectangular configuration;

[0018]FIG. 2D is a front, elevated view of the filter according to FIG. 2C in accordance with the present invention having a rectangular configuration;

[0019]FIGS. 2E and 2F are top plan views of alternative embodiments of the filter according to the present invention having triangular and curved-shaped configurations, respectively;

[0020]FIG. 3 is an elevated, side view of the filter according to the present invention as it might appear installed into a swimming pool skimmer channel (and showing the deck and side walls of the swimming pool cross-sectioned);

[0021]FIG. 4 is a side view of a handle extension according to the present invention used to lift and position the filter according to the present invention;

[0022]FIG. 4A is a perspective, isometric view of an alternative embodiment of a combined handle according to the present invention and a multi-function trap-wall; and

[0023]FIG. 5 is a fragmentary isometric perspective view of an alternative embodiment of the main body of the filter according to the present invention having a porous overlay mounted adjacent to the interior surfaces of the filter.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0024] Referring now to the drawings in more detail, FIG. 1 illustrates a swimming pool filter apparatus 10 configured to be preferably run in tandem with and upstream of a conventional swimming pool skimmer. The apparatus 10 is adapted for use with a pool for removing floating debris positioned adjacent or within a pool flowing channel 40 of a skimmer system as described below in FIG. 1A. The invention can function as a supplementary filtering structure configured for being completely or at least partially “flush-mounted” within the skimmer system.

[0025] The filter 10 is configured to be installed into a skimmer channel inlet 39 in such a way that the filter is oriented within the interior of a channel 40 in a substantially horizontal mode. As illustrated in FIG. 1A, a conventional skimmer channel 40 is generally constructed from a first channel side wall 60, second channel side wall 61, floor 50, and ceiling 58 and has an inlet 39.

[0026] In the preferred embodiment, the swimming pool filter apparatus 10 has a liner 11 with a main body having a wedge-shaped configuration in such a way that the filter 10 can be substantially “flush-mounted” within a skimmer channel 40 also having a wedge-shaped configuration. This filter configuration is adapted to help remove excessive swimming pool debris such as leaves, insects, etc.—before the debris reaches the primary built-in skimmer basket of the pool skimmer system. Also, with the flush-mounted configuration, the filter 10 helps improve pool safety since the filter does not have structure extending out substantially into the pool swimming area.

[0027] The filtering liner 11 is preferably formed substantially from a porous structure such as plastic grating, wire mesh, flexible plastic netting or other suitable material. The liner 11 has a main body which preferably includes a platform 12, an end wall 14, and first and second side walls 16, 18, with all three walls 14, 16, and 18 attached to the platform 12. Each of the three walls 14, 16, 18 preferably lies in a separate plane with all three walls being substantially perpendicular to the platform 12. Of course, a person of ordinary skill in the art would understand that the angle of orientation of any of the walls 14, 16, 18—with respect to the platform 12—need not be substantially perpendicular for the invention to operate; thus, the walls could be oriented at some other angle with respect to the platform. In addition, the walls 14, 16, 18 are preferably also integrally formed with the platform 12 to create one substantially contiguous surface. With such an integrated configuration, the filter 10 may be more easily manufactured or formed through injection molding processes and the like.

[0028] As illustrated in FIGS. 1 and 2, the side walls 16, 18 are preferably positioned and oriented such that they would converge if extended. All three walls 16, 14, 18 in combination are arranged in a wedge-shaped configuration. With this orientation, the side walls 16, 18 are configured to conform to the corresponding wedge-shaped configuration of the interior skimmer channel side walls 60, 61 illustrated in FIG. 2. This essentially universal fit enables the filter 10 to be installed in many conventional pool skimmer channels and fosters a secure fit therein. In addition, a plurality of bumpers 27, 29, 31, 33 are preferably attached to the exterior surface of side walls 16, 18. The bumpers are ideally mounted near the ends of the walls 16, 18 and the bottom edges of the walls 16, 18 along where the walls 16, 18 are connected to the platform 12. However, they may be mounted in other suitable locations on the outer surfaces of the walls 16, 18. The bumpers 27, 29, 31, 33 are adapted to maintain a space between the filter 10 and the inner side walls 60, 61 of the skimmer channel 40 so as to help prevent the filter from being turned sideways or inadvertently reoriented within the channel 40 and thereby possibly affecting the efficiency of the filter. The thickness of the individual bumpers preferably ranges from 0.25 inch to 0.75 inch. Preferably each of the bumpers 27, 29, 31, 33 has a rounded outer surface so as to help prevent the bumper from being broken off while being installed into or removed from the skimmer channel 40. The bumpers are ideally formed from the same material as the liner 11—through injection molding. However, the bumpers may be formed from a resilient material (e.g., rubber) such that the friction created between the outer surfaces of the resilient bumpers and the channel inner side walls 60, 61 may help restrain the filter within the channel 40.

[0029] The combination of the platform 12 and walls 16, 14, 18 is configured to form the main body of liner 11 and is preferably formed substantially of a porous, plastic grating material. With such a configuration, as illustrated in FIGS. 1, 2, and 2A, the liner 11 has an interior 19 in communication with an open top 20 and a wide-open entrance 22 resulting from the contiguous arrangement of the platform 12 and the walls 16, 14, 18. In this way, the main body, comprised of platform 12 and the three walls 16, 14, 18, is adapted for removing floating leaves and debris from incoming pool water as it passes through the plastic grating material of the main body.

[0030] It should be emphasized that filter 10 is preferably configured so that it may be quickly and readily cleaned. That is, unlike many other filter devices, filter 10 has two openings for emptying: the open top 20 and wide-open entrance 22 in communication with the interior 19. Thus, after removing a filter loaded with debris such as leaves, the filter may be substantially cleaned by merely flipping it over—and shaking out the contents if necessary. A water hose may be used for further cleaning if desired. Moreover, with such a configuration, the interior 19 may be easily accessed (without having to remove doors or covers) in order to clean out the filter—or inspect and selectively sort out the trapped debris to discard it or retain it if it is important (e.g., a child's favorite pool toy or the like).

[0031] The grating of the main body 11 is preferably formed from a grid material having a plurality of square openings. For example, the square openings 23, 25 preferably have sides ranging in length from 0.375 inch to 0.5 inch. However, other porous materials and openings may be used having different dimensions, sizes, shapes, and configurations; the openings may be consistent or variable in size throughout the porous portions of the filter 10. Also, the depth, as designated by the letters Do (in FIG. 2), of each opening in the grid material of the walls 16, 14, 18 may be also variable. The material thickness, or depth Do, preferably ranges from 0.125 inch to 0.5 inch. However, it is also contemplated that different portions of the filter may be formed of materials having different thicknesses.

[0032] It should be appreciated that when pool water is flowing through the filter 10—as initially installed (i.e., without any debris therein)—the filter's basic porous, grid configuration is designed to minimize drag and turbulence on water flowing through the filter. Thus, the filter 10 should not have any noticeable affect on the efficiency of a pool circulation pump.

[0033] A person of ordinary skill in the art would understand that the various structures of the filter 10 may also be formed from other materials having desirable properties (e.g., buoyancy, rust/corrosion resistance, heft, etc.)—depending on the environment in which the filter is used. For example, portions of the filter 10 could be made from materials such as aluminum, stainless steel, etc. (coated, galvanized or treated as necessary) and other portions could be made with other materials such as a soft flexible plastic to ensure the preferred porosity, buoyancy, heft, and handling characteristics of the filter. Also, the side walls 16, 18 or other portions of the liner or the filter could be formed of a solid, non-porous material.

[0034] The liner 11 is preferably formed from materials that have buoyant properties so as to prevent the filter 10 from sinking and to make it easier to retrieve if the filter were dropped in the pool.

[0035] Both the first and second side walls 16, 18 are attached respectively to the end wall 14 at a first distal end 24 of the first side wall 16 and a second distal end 26 of the second side wall 18. The main body's first side wall 16 has a first proximal end 28 with a first filter flange 32 attached thereto; second side wall 18 has a second proximal end 30 with a second filter flange 34 attached thereto. Preferably, both flanges 32, 34 lie in a plane that is substantially perpendicular to the platform 12. The first flange 32 extends away from the entrance 22 of the liner 11; first flange 32 lies in a plane that is at an angle from the plane of first side wall 16. The second flange 34, also extends away from the entrance 22 of the liner 11 but in the opposite direction from flange 32; second flange 34 lies in a plane that is at an angle from the plane of the second side wall 18. The top, side, and bottom edges of the flanges 32, 34 need not be as shown in FIGS. 1 and 2A and may be of some other shape, length, or configuration.

[0036] Referring now to FIGS. 2 and 3, it can be more clearly seen that the first and second filter flanges 32, 34 are configured and adapted to rest flush against the pool side walls 36, 38, respectively. In effect, the flanges 32, 34 serve as a stop-mechanism to prevent the filter 10 from being carried too far into the skimmer channel 40 by incoming suction water flow and interfering with the operation of the weir gate 42. This configuration also permits the filter 10 to be substantially “flush-mounted” within the channel 40.

[0037] This flush-mounted configuration is also adapted to improve pool safety. That is, the filter 10 is adapted to be installed substantially within the skimmer channel 40 shown in FIG. 1A in such a way as to help minimize the possibility of the filter 10 being bumped into or dislodged by swimmers or objects within the pool.

[0038] In the preferred embodiment, the platform 12 of the filter 10 is oriented such that the platform lies in a plane that is substantially parallel with respect to the skimmer channel floor 50 which is oriented horizontally in many conventional swimming pools. However, a person of ordinary skill in the art would understand that the platform may also be oriented in a plane that lies at some other angle with respect to the floor 50.

[0039] Referring now to FIGS. 1, 2, and 3, the mounting configuration of the pool filter 10 facilitates removal of the filter for emptying, cleaning, and maintenance—and also visual inspection of the filter from a distance—without having to remove any structure such as a cover or access lid 67 to retrieve the filter or to see if the filter has filled up with debris. That is, with many conventional pools, a lid—secured over the skimmer basket 66 and built into the pool deck 69—must be removed to inspect the skimmer basket to see if the basket is full of debris or clogged. However, the flush-mounted pool filter 10 may conveniently be inspected visually from the pool side opposite the skimmer channel inlet 39—without having to remove fasteners or access structures.

[0040] Additionally, in the preferred embodiment of the invention, the filter apparatus 10 is substantially formed of a material having a light color so as to enhance the color contrast between the filter and any debris, insects, leaves or the like trapped therein. Moreover, the color contrast will aid a person in inspecting the filter 10—from a distance—in order to confirm whether or not the filter is filled with debris and the like.

[0041] The filter 10 further includes preferably three standoffs 44, 46 and 48. The standoffs 44, 46, 48 are ideally attached to or formed from the liner platform 12 and positioned in such a way as to create a tripod base. The filter's tripod base is configured to rest on the channel floor 50 between the channel floor 50 and the platform 12.

[0042] Referring now specifically to FIGS. 2A and 3 of the preferred embodiment, it can be clearly seen that the height of each standoff 44, 46, 48 is proportioned so as to form a space or bypass gap, represented by the letters Hg. The height of each standoff is preferably—but not necessarily—the same. The bypass gap Hg, created between the platform 12 and the channel floor 50, allows water to generally pass under the filter liner 11 in the event that debris—such as leaves 54, dirt 56, algae or the like—clogs the interior surfaces of the liner walls 16, 14, 18 and prevents adequate water flow through the walls. This configuration helps ensure continual water flow past the filter 10 and downstream through the channel 40 to the pool circulation system so as to help prevent the pool circulation pump from burning out due to a lack of water flow through the skimmer and circulation system. Thus, gap Hg helps maintain fluid communication between the channel inlet 39 and the downstream channel interior near weir gate 42 of the skimmer system.

[0043] It should be appreciated that the bypass gap Hg also serves to prevent the filter 10 from being too firmly anchored within the skimmer channel 40 when the pumps are on, and the filter is subject to the water circulation suction force. That is, when the pumps are on, water will still be sucked through the bypass gap—along the height and width of the bypass gap—thereby proportionately reducing the cross-sectional area of the suction force that otherwise would be acting on the filter 10. In this way, the filter 10 may be more readily removed in the unlikely event that a person's extremities (such as hair, fingers, etc.) get caught in the filter. Also, the filter 10 can be more easily removed (for emptying and maintenance) or installed—whether the pumps are on or off.

[0044] Referring now specifically to FIG. 2, the filter 10 also preferably includes secondary bypass gaps formed by the bumpers 27, 29, 31, 33. That is, the left side bumpers 27, 29 (as viewed from the entrance 22) help maintain a left-side bypass gap, designated by the letters Wsl, between the liner side wall 16 and channel wall 60; the right side bumpers 31, 33 help maintain a right-side bypass gap, designated by the letters Wsr, between the liner side wall 18 and channel wall 61. The flanges 32, 34 are preferably formed from the same porous material as the liner 11 such that water may pass through the flanges and into the gaps Wsl and Wsr created, respectively, between the liner side walls 16, 18 and channel walls 60, 61. In this way, gaps Wsl and Wsr also help maintain fluid communication between the channel inlet 39 and the downstream interior of channel 40 near weir gate 42. Therefore, the left and right secondary bypass gaps, Wsl and Wsr, have a similar function as bypass gap Hg and foster ready removal of the filter 10 as well as continual water flow past the filter and weir gate 42 and into the downstream pool circulation system.

[0045] It should be recognized that some debris may pass through the bypass gaps Hg, Wsl, and Wsr and downstream of the filter 10 and then be trapped in the skimmer basket 66. Accordingly, the skimmer basket 66 would still need to be checked periodically to ensure that it has not filled up with debris so as to prevent sufficient water flow to the pool circulation pump and thereby possibly cause the pump to burn out.

[0046] In the preferred embodiment, the filter 10 also includes a biasing element 62 (shown in FIGS. 2A and 3) having a dual-purpose configuration for securely holding the filter 10 in a substantially horizontal configuration adjacent the side walls 60, 61 of the channel 40 and also for filtering out debris flowing over the top of the main body of liner 11.

[0047] Ideally, the biasing element 62 is formed from a dual-characteristic material that is flexible so as to be useable for exerting a biasing force on a surface within the skimmer channel 40 and at the same time also is porous for aiding in the filtering of water passing through the filter 10. For example, the biasing element 62 could be formed from a porous rubber or foam with perforations or openings of sufficient size to aid in filtering debris. The biasing element could also be a substantially flexible spring mounted atop said upper rim 64 in such a way that the spring's central axis is oriented substantially parallel to the upper rim 64. In this way, the substantially flexible spring would be able to exert a radially oriented urging force against an inner surface of the channel 40.

[0048] The preferable biasing element 62—configured to be resilient, flexible, and porous—is a brush strip as illustrated in FIG. 3. With such a configuration—as emphasized earlier—the biasing element 62 has the dual-purpose of not only removably securing the filter 10 within the skimmer channel 40 but also of filtering water passing over the top of the liner 11 main body. For example, if the pool began to excessively fill up with water—for example, due to rainfall or a water hose being left on in the pool—the water level in the skimmer channel 40 would rise above the top of the liner main body 11; the porosity of the biasing element 62 would serve to substantially filter the water flowing over the main body 11.

[0049] Thus, in the preferred embodiment of the invention, the filter 10 includes at least two structures configured for removing floating debris from pool water: the main body of liner 11; and the biasing element 62.

[0050] The biasing element or brush strip 62, is preferably mounted so as to extend along or near the upper rim 64 of liner 11 which is formed by the contiguous upper edges of the walls 16, 14, 18 as illustrated in FIGS. 1-3. The bristles of the brush strip 62 extend upwardly in an orientation which is substantially parallel with the liner walls 16, 14, 18. The brush strip 62 may also be integrally formed with the liner main body 11 (through possibly injection molding or other manufacturing processes)—or the brush strip may be permanently or removably attached to the main body. The brush strip 62 is preferably configured such that it is removably attached to the main body 11. For example, as illustrated in FIG. 2B, the brush strip 62 may be configured with a substantially dovetailed base 140 adapted to be slidably mounted to the upper rim 64 with the rim being configured with a substantially matching dovetailed slot 142 extending along the upper rim 64 (or, for example, in a similar manner as auto windshield wiper mounting structures); the brush strip also may be detachably mounted using conventional fasteners. With this “modular” configuration, only the brush strip 62 would need to be replaced if it becomes overly worn; the remainder of the filter 10 could continue to be used.

[0051] Referring now to FIG. 2A, the brush length (Lb) is preferably long enough such that when the filter 10 is installed in the skimmer channel 40, and oriented in a substantially horizontal configuration, the brush strip 62 forcibly contacts the ceiling 58. This results in a downward force transmitted through the standoffs 44, 46, 48 to the channel floor 50, thereby holding the filter 10 substantially in place within the skimmer channel 40. This holding or biasing force is needed when the pool pump is shut off and no suction force is present. The suction force results when the pump is on and causes water to flow into the skimmer channel inlet 39, through the filter 10, past the weir gate 42, and then into the skimmer basket 66. The suction force of water flowing into the skimmer channel 40 would generally be sufficient to keep the filter 10 in place with the filter flanges 32, 34 being pulled against the pool side walls 36, 38 as illustrated in FIGS. 2 and 3. However, when the pool pump is shut off, there would not be a suction force to hold the filter 10 in the channel 40. Thus, when the pumps are off, the biasing or urging force of the brush strip 62 effectively prevents the filter 10 from backing out of the skimmer channel 40 and floating back into or sinking in the pool. It should be noted that, if the filter 10 were allowed to back out or possibly sink, any leaves, insects, and debris that had already been caught and trapped in the filter 10 might be released back into the pool.

[0052] Of course, the biasing element 62 may also have a less preferred configuration and be positioned such that it forcibly contacts any of the inner surfaces 50, 58, 60, 61 which make up the interior of the skimmer channel 40 in many conventional pools. Moreover, the biasing element 62 could also be configured to be anchored within the channel 40 in such a way as to contact or be releaseably connected to some other surface—or object—within the channel 40. However, these less preferred configurations may not work as well as the preferred embodiment of the invention.

[0053] It should also be recognized that certain safety design features are built into the flush-mounted filter 10. Unlike many conventional skimmer devices firmly fastened over the channel entrance 39 and extending into the swimming area, the filter 10 is not only adapted to be unobtrusively flush-mounted, but it also is adapted for quick-removal. This is especially desirable if a powerful pool circulation pump is on and water—as well as anything nearby the channel opening 39—is being forcefully sucked into the channel 40 and through the filter 10. As noted before, if a person's long hair, long necklace, etc. were caught or entangled within the filter 10, the filter could be readily removed from the channel 40 to disentangle the person's hair. This quick-removal feature results from the way the filter 10 is mounted within the channel 40 when there is pool suction current through the channel. That is, the construction of the biasing element 62 is preferably configured to function cooperatively with the construction of the standoffs 44, 46, 48—creating the bypass gap Hg—as well as the bumpers 27, 29, 31, 33—creating the secondary bypass gaps Wsl and Wsr—to prevent the filter 10 from being too firmly anchored within the channel 40 when the pool pumps are on. In other words, the biasing element 62 sufficiently—but removably—holds the filter 10 within the channel 40; and as emphasized earlier, the water bypass gap Hg and secondary bypass gaps Wsl and Wsr allow sufficient—but not excessive—water to bypass the filter 10 so as to help prevent the filter from being sucked to firmly within the channel 40 when subject to pool pump suction forces. The bypass gaps Hg, Wsl, and Wsr also cooperatively function to help ensure continual downstream water flow to help prevent the pool circulation pump from being burned out due to lack of water flow through the system.

[0054] In the preferred embodiment of the invention, the filter 10 is sized to have a substantially universal fit within many conventional wedge-shaped skimmer channels 40 as illustrated in FIGS. 2, 2A and 3. The filter 10 preferably has a total height as defined by the cumulative height of the following illustrated in FIG. 2A: Hg—the height of the bypass gap created by the standoffs 44, 46, 48 (e.g., preferably ranging from 0.25 inch to 1 inch); Hl—the height of the liner 11 (e.g., preferably ranging from 3.5 inches to 5.5 inches); and Lb—the length of the biasing element 62 (e.g., length of the brush bristles) (preferably ranging from 0.75 inch to 3.5 inches). Thus, the total height preferably ranges from 4.5 inches to 7 inches. The biasing element 62 fosters such a universal fit because the biasing element is preferably flexible enough so that it allows the filter 10 to be installed in skimmer channels having a variety of heights. That is, the biasing element 62 is preferably configured to flex as necessary in order for the filter 10 to securely fit into the channel 40 as shown in FIG. 3.

[0055] As illustrated in FIGS. 2, 2A, and 3, it is preferred that the filter 10 have a total width at the entrance 22, as designated by We, preferably ranging from 10 inches to 16 inches and a total width at the end wall 14, as designated by Wi, preferably ranging from 5 inches to 8 inches. The preferred total depth, as designated by Df, ranges from 8 inches to 12 inches. It should be noted, that filter 10 could be configured such that only a few models would be needed to fit many conventional pool channels. Many pools have a channel depth (i.e., from the entrance 39 of the channel to a location just before the base of the weir gate 42) of either about 9 inches or about 12 inches. To accommodate variations of channel sizes and configurations, several models of the filter 10 could be available. For example, one of the models could be configured for 9-inch deep channels and another model configured for 12-inch deep channels.

[0056] However, it is also contemplated, that the filter 10 could have a telescoping structure and/or a flexible framework and body for changing the filter's size. That is, the walls, platform, and biasing element of the filter 10 could be slidably, flexibly, and/or hingably configured with respect to each other such that one size filter fits most conventional channels.

[0057] In order to make it easier to carry and position the filter 10, a handle 68 is preferably detachably mounted to the platform 12. Fastening elements for detachably mounting the handle 68 to the platform preferably include plastic thumbscrews 73, 75. The plastic thumbscrews 73, 75 may be inserted upwardly through openings in the plastic grating of platform 12 and into the bottom of handle 68 having sockets 81, 83 adapted to threadably receive the thumbscrews 73, 75. In this way, handle 68 may be positioned at various desired locations on platform 12 to facilitate access to the filter 10 while it is installed in the channel 40. The handle 68 is formed with an aperture 70 to further foster gripping, handling, and placement of the filter 10. The handle 68 is also configured to function as a diverter for separating the flow of water into the liner interior 19 such that incoming water is more equally filtered along the surfaces of the left region of the main body 11 (nearer first side wall 16) and the right region (nearer second side wall 18) of the main body as viewed from the entrance 22.

[0058] Referring specifically to FIG. 4, ideally a detachable handle extension 72 is configured to facilitate removing the filter 10 from or installing it into the skimmer channel 40—without having to kneel down or reach one's hand into the skimmed surface water residue to retrieve or install the filter 10. The detachable handle extension 72 preferably includes a tubular extension 74, first and second protrusions 76, 77 (preferably extending in opposite directions), and a plate 79. With this configuration, a person may install or remove the filter 10 from either the right or left side as viewed from the open entrance 22. A person may insert the first or second protrusion 76, 77 into aperture 70, and then rotate the tubular extension downwardly as a lever so as to cause the plate 79 to contact the platform 12. This enables the filter 10 to be pulled out and lifted up from or positioned within the skimmer channel 40—from either side of the aperture 70. The plate 79 is configured to help stabilize the filter 10 in a horizontal mode when handling the filter with the handle extension.

[0059] It should be noted that the protrusions 76, 77 may also be hook-shaped protrusions configured for being releaseably connected to the filter 10 so as to help manipulate and position the filter 10 as desired.

[0060] Referring again to FIGS. 1 and 2, at least one and preferably a plurality of angled slats 100-127 are formed into the platform 12 in order to help prevent debris from possibly floating back out of the filter 10 once the debris has been captured within the filter 10. The angled slats are oriented such that they lie in planes which are at an angle, as designated by As, with respect to the plane of the platform 12. The slats are preferably oriented at 45 degrees from the plane of the platform and angled toward the end wall 14. In this way, the combination of said plurality of angled slats 100-113 and 114-127 in effect creates two horizontally-oriented, fence structures 128, 129, respectively. The fence structures 128, 129 help entrap debris such as leaves, insects, and the like within the filter.

[0061] In order to strengthen the fence structures 128, 129—effectively formed into the platform 12—reinforcing members 130, 131 are preferably mounted to the bottom surface of the fence structures. The reinforcing member 130 ideally extends along at least a portion of the bottom of fence structure 128, and reinforcing member 131 ideally extends along at least a portion of the bottom of fence structure 129 with both members 130, 131 being oriented substantially perpendicular to the length-wise orientation of the slats.

[0062] Referring now to FIGS. 2C and 2D, there is an alternative embodiment of the filter 10 having a main body 200 with a rectangular configuration for use in skimmer channels having a corresponding rectangular configuration. Additionally, referring now to FIGS. 2E and 2F, there are alternative embodiments of the filter 10 having a main body 210 with a triangular configuration and a main body 220 having a configuration of any desired curvature, respectively. Depending on the particular configuration of a skimmer channel, anyone of these alternative embodiments may be used instead of the wedge-shaped configuration of the preferred embodiment illustrated in FIG. 1. Of course, other shapes of the filter 10 could also be used.

[0063] Referring again to FIGS. 2 and 2A, there is another alternative embodiment related to standoffs 44, 46, 48. It should be recognized that any of the standoffs 44, 46, 48, as well as—or instead of—the main body of the filter 10, may be formed from materials having buoyant properties, such as foam or the like. Also, the standoffs may be made in such a way as to include an airtight cavity so as to help prevent the filter 10 from sinking.

[0064] Thus, the tripod base would have a dual-function of both supporting the filter 10 on the channel floor 50 and buoying the filter in the pool water.

[0065] In addition, as shown in FIG. 2C, a buoyant material of suitable configuration could be selectively secured to the outer surfaces of the liner walls 16′, 14′, 18′. For example, strips 206, 204, 208 of buoyant material such as foam, Styrofoam, etc., may be attached to the base of liner walls 16′, 14′, 18′. Of course, a buoyant strip could also be used in a similar manner with the configurations as shown in FIGS. 1, 2E, 2F, or other configurations of the filter; of course, the buoyant strip could also be attached to other surfaces of the filter.

[0066] Referring now to FIG. 4A, there is illustrated an alternative embodiment of a multi-function, trap-wall 300 adapted to be detachably mounted to the platform 12 at various locations as desired. The trap-wall 300 may be oriented on the platform 12 and detachably mounted with the same fastening elements used for handle 68 including plastic thumbscrews 73, 75. Accordingly, the interchangeable plastic thumbscrews 73, 75 may be inserted upwardly through the plastic grating of the platform 12 and into the bottom of the trap-wall 300 having sockets 81′, 83′ adapted to threadably receive the thumbscrews 73, 75.

[0067] The trap-wall 300 is multi-functional. The trap-wall 300 is configured and adapted for the following: serving as a handle for carrying and positioning the pool filter 10; entrapping debris within the interior 19 of the filter liner so as to prevent the debris from floating back out of the filter; and helping to minimize the possibility of a person—or an unsuspecting child—reaching his or her hand into the filter interior 19. The trap-wall 300 ideally has a V-shape configuration to foster gripping of the trap-wall and also to aid in capturing debris within the filter 10.

[0068] In addition, it is contemplated that the handle 68 or trap-wall 300 fastening elements, such as the thumbscrews 73, 75 or other such fastening structures, may be configured to form at least one downwardly extending protrusion which also serves as at least one leg of the tripod base. For example, one of the two thumbscrews 73, 75 could form one leg of the base and standoffs 44 and 48 could be reoriented to form the other two legs of the base. Of course, a person of ordinary skill in the art would understand that the base could be formed by the combination of at least one fastening element and at least one standoff and that a variety of arrangements could be formed as a base. Moreover, the fastening elements—as well as the standoffs—could be adjustable so as to increase or decrease the bypass gap Hg to vary the suction force on the filter 10 or vary the amount of allowable water flow past the filter.

[0069] Referring now to FIG. 5, there is shown another alternative embodiment of a porous overlay 400 that may be used within the interior 19 to further facilitate cleaning out the filter 10. It may be desirable to use an overlay if hard-to-remove substances are in the pool. The overlay 400 may be formed from a flexible porous material adapted to be re-used or discarded after using the overlay to help filter pool water containing substances such as slimy algae, oils or lotions, etc. that might otherwise be hard to remove from the surfaces of the filter.

[0070] The overlay 400 is preferably formed from a flexible, porous material so that the overlay may be removably mounted adjacent the inner surfaces of liner 11. The overlay 400 may be placed within the filter interior 19 so as to substantially overlie and conform to the inner surfaces of the walls 16, 14, 18, the platform 12, and/or the biasing element 62. Preferably, fastening or quick-release attaching members (e.g., flexible plastic snap members, tie-off straps, etc.) may be used to hold the overlay 400 in place within the interior 19. The handle 68 may also be mounted on top of the overlay 400 to help secure the overlay.

[0071] With the overlay 400 in place, the filter 10 may be emptied—while the filter is still installed within the channel 40. For example, the overlay 400 could be grasped and pulled out of the interior by either undoing fasteners or quick-release snap-in members (e.g., items 402, 404). Also, overlay 400 could be removably secured using tie-off straps (e.g., item 406). It should be appreciated that after removal of the overlay 400, the filter 10—as is—would continue to trap debris, and later if desired, the user could replace the overlay at a more convenient time.

[0072] It should also be appreciated that the preferred embodiment of the invention, as illustrated in FIGS. 2 and 3, is marketed by determining a market for a wedge-shaped secondary pool filter 10 run in tandem with a swimming pool skimmer channel 39, 40 having a wedge-shaped configuration formed from the skimmer channel entrance 39 and interior 40, 50, 58, 60, 61 which matches the configuration of the pool filter 10 and then marketing the pool filter 10.

[0073] In addition, it should be appreciated that in the preferred embodiment, as illustrated in FIGS. 2 and 3, a secondary pool filter apparatus 10, preferably having a wedge-shaped configuration, is used which matches a swimming pool skimmer 39, with channel 40 having a wedge-shaped configuration. The secondary pool filter apparatus 10, preferably with a pair of flanges 32, 34, is inserted into the swimming pool skimmer 39, 40 until the flanges are flush with the swimming pool walls 36, 38.

[0074] However, referring now to FIGS. 2C and 2D, there is an alternative embodiment of the filter 10 having a main body 200 with a rectangular configuration to be marketed and used for skimmer channels having a matching rectangular shape. Additionally, referring now to FIG. 2E, there is an alternative embodiment of the filter 10 having a main body 210 with a triangular configuration to be marketed and used for skimmer channels having a matching triangular configuration. Also, referring now to FIG. 2F, there is an alternative embodiment of the filter 10 having a main body 220 with a curved-shaped configuration to be marketed and used for skimmer channels having a different configuration, but nonetheless having a flush mounted set of flanges. Of course, other shapes of the filter 10 could also be marketed and used for skimmer channels having various other shapes. In addition, the filter 10 could have a configuration that is different from the configuration of the channel 40 of a skimmer system with the filter 10 still being substantially flush-mounted in the channel 40.

[0075] Moreover, it should be recognized that all of the configurations shown in FIGS. 2C-2F would also include the other elements of the preferred embodiment shown in FIGS. 1, 2, 2A, 2B, and 3 as the emphasis in FIGS. 2C-2F is on the main body configuration.

[0076] The swimming pool filter 10 is configured to be installed in a conventional skimmer channel 40 as shown in FIGS. 2 and 3′ such that the filter preferably functions as a secondary pool filter run in tandem with a swimming pool skimmer system. Prior to actual installation or removal of the filter 10, the pool water circulation pump—creating a suction current around the skimmer channel inlet 39—should be turned off. This depends in part on how powerful the pump is that is creating the suction current. However, it is not absolutely necessary to turn off the pool pump prior to installation or removal of the filter 10 if a prudent user properly grasps the filter 10 using only the handle 68—or using the handle in conjunction with the detachable handle extension 72 illustrated in FIG. 4. When installing or removing the filter 10, while the pool circulation pump is on, the user should always be aware of—and use caution due to—the suction current around and within the skimmer channel 40 (e.g., some pools may have very powerful circulation pumps).

[0077] In addition, before installing the filter 10, the user should confirm that the depth of the channel 40 is sufficient to accommodate the depth of the filter, as designed by the letter Df (illustrated in FIGS. 2 and 3). The filter 10 should not make contact with the weir gate 42 or weir gate stop 43—or any other obstacles. This will ensure that the filter 10 does not interfere with the operation of the pool's weir gate 42 and skimmer basket 66.

[0078] To install the filter 10, the user should first insert a digit—preferably the index finger—into the aperture 70 so as to grasp the handle 68. The filter 10 is installed such that first the liner end wall 14 enters the channel opening 39. The filter 10 may then be carefully and slowly pushed into the channel 40 until the flanges 32, 34 just rest adjacent the pool side walls 36, 38, respectively. Assuming the pump was turned off, it may now be turned on. The suction current will cause pool water to flow into the wide-open entrance 22 of the filter 10 and debris such as leaves, insects, etc., should be caught in the interior 19 of the filter 10.

[0079] The filter 10 should be inspected regularly for debris or anything else caught in the filter. Before removing the filter 10, the filtered contents should be carefully checked for the type of debris trapped in the filter. That is, sometimes insects, reptiles, rodents, etc., could be caught in the filter; the user must be prudent and use proper care in handling the filter if it contains anything potentially harmful.

[0080] In addition, before removing the filter 10, the user may want to turn off the pool pump—creating the pool suction current through the skimmer channel 40—to make it even easier to retract the filter (for example, if there is a substantial suction current). This will also prevent any water and debris from continuing to flow into the skimmer channel inlet 39 while the filter 10 is being removed—or after it is completely removed. Of course, even if the pool circulation pump is left on, the pool's built-in strainer basket 66 would still be in place to perform its primary filtering function.

[0081] Assuming that debris such as harmless leaves, trash and the like are in the filter 10, the filter may be grasped—using the handle 68—as noted in the installation procedures described above. Next, the filter 10 should be carefully pulled out of the channel 40. The filter 10 may then be readily emptied. For example, if the filter 10 is loaded with debris such as leaves, the filter may be emptied by merely flipping it over and shaking out the contents as necessary. A bucket of water or a water hose may then be used to further clean out the debris. The filter 10 should also be inspected for any damage—to ensure that the filter is completely intact—prior to re-installing it. If undamaged, the filter may then be re-installed as described above.

[0082] The handle extension 72 may also be used to install or remove the filter 10. The handle extension 72 may especially come in handy when the user does not want to reach into undesirable skimmed water residue floating in or around the filter 10.

[0083] To use the handle extension 72, the user can insert the first or second protrusion 76, 77 into aperture 70—from the right or left side as appropriate—and then rotate the tubular extension 74 downwardly such that the plate 79 contacts the platform 12. The plate 79 helps stabilize the filter 10 in a horizontal mode when handling it. The filter 10 can then be installed or removed from the channel 40 as previously described above.

[0084] It is noted that the embodiments of the pool filter apparatus described herein in detail for exemplary purposes are of course subject to many different variations in structure, design, application and methodology.

[0085] It should be apparent to those skilled in the art that other modifications of various parts of the invention may be accomplished without departing from the spirit of the invention. For example, the biasing or urging element could be configured from a flexible structure, such as foam or the like or various other structures capable of creating an urging force to hold the filter in place. The foam preferably would also be perforated or porous to help filter debris. The biasing or urging element could also be positioned and configured to forcibly contact any interior channel surface or the element could include a tethering structure anchored to some part of the swimming pool or skimmer system to releaseably or fixedly hold the filter in place.

[0086] In addition, the filter could be modified for use in many other applications where a fluid such as water, chemical plant liquids, sewage or waste water—or possibly even a gas—requires filtering. That is, the filter invention herein could be sized and configured to be used in water processing systems in manufacturing plants, water waste systems, etc. The filter could also be used in a fish pond, fish farm, stream, etc. to filter circulating or running water and the like. A smaller version having a main body (e.g., with a finer filtering porosity) and a biasing element could be modified dimensionally and proportionately for use in an automobile air filtering system so as to foster ready replacement and cleaning of the air filter. Likewise, it is contemplated that the invention herein, could be used in residential or commercial heating, ventilation, and air conditioning systems and ducts for filtering air.

[0087] Because many varying and different embodiments may be made within the scope of the inventive concepts herein taught, and because many modifications may be made to the embodiments herein detailed in accordance with the descriptive requirements of the law, it is to be understood that the details herein are to be interpreted as illustrative and not in a limiting sense. 

What is claimed is:
 1. A pool filter apparatus for use with a pool for removing floating debris positioned adjacent or within a pool flowing channel of a skimmer system, comprising: a filtering structure configured for being completely or at least partially flush-mounted within the skimmer system.
 2. A pool filter apparatus for use with a pool for removing floating debris positioned adjacent or within a pool flowing channel of a skimmer system, comprising: a porous body mounted within the skimmer system and being prevented from moving, floating, or traveling.
 3. A pool filter apparatus for use with a pool for removing floating debris positioned adjacent or within a pool flowing channel of a skimmer system, comprising: a liner having a main body adapted for removing floating debris from swimming pool water; and part of said filter including at least one flange and a biasing element for enabling continuing operation of said skimmer system and to prevent said filter from floating out of the skimmer channel or sinking.
 4. The apparatus according to claim 3 wherein the main body of said liner comprises a platform and at least one wall attached thereto, and wherein said at least one wall is oriented in a plane that lies at an angle with respect to said platform.
 5. The apparatus according to claim 3 wherein said filter has at least one flange mounted to said main body with said at least one flange being adapted for resting against a swimming pool side wall so as to prevent said filter from traveling within a skimmer system channel in such a way as to interfere with the operation of said skimmer system.
 6. The apparatus according to claim 3 wherein the main body of said liner comprises a platform having first and second side walls and an end wall attached thereto, said side walls and end wall being positioned and oriented such that they lie in planes all of which are at an angle with respect to said platform, and wherein said liner has an interior in communication with an open top and an open entrance.
 7. The apparatus according to claim 6 wherein said first and second side walls and said end wall are integrally formed with said platform such that the main body is one substantially contiguous surface so as to facilitate manufacturing said filter.
 8. The apparatus according to claim 3 wherein said filter is has an open top and an open entrance in communication with the interior so as to facilitate inspection and access to trapped debris and to foster cleaning, and wherein such a configuration enables said filter to be substantially cleaned by merely flipping it over—and shaking out the contents if necessary.
 9. The apparatus according to claim 3 wherein said filter is sized and proportioned such that substantially all of said filter may be installed within said skimmer channel so as to be substantially flush-mounted within the skimmer channel.
 10. The apparatus according to claim 3 wherein said biasing element comprises a brush mounted to said main body, and wherein said brush forcibly contacts an interior surface of said skimmer channel so as to hold said filter substantially in place within the skimmer channel, and wherein said brush is flexible and has a sufficient length such that said filter may be installed in skimmer channels having a variety of dimensions, and wherein said flexible brush enables said filter to have a substantially universal fit in many conventional skimmer channels.
 11. The apparatus according to claim 3 wherein said biasing element is both flexible and porous so as to have a dual-purpose for securing said filter within the skimmer channel and for filtering water passing over the top of said liner main body.
 12. The apparatus according to claim 3 wherein said biasing element is formed from a dual-characteristic material which is flexible so as to be useable for exerting a biasing force on a surface within the skimmer channel and at the same time is also porous for aiding in the filtering of water passing therethrough.
 13. The apparatus according to claim 3 wherein said biasing element is configured so as to secure said filter within the channel, and wherein said biasing element forcibly contacts or is releaseably connected to some surface—or object—within the channel or pool.
 14. The apparatus according to claim 3 wherein said biasing element is integrally formed with said liner main body.
 15. The apparatus according to claim 3 wherein said biasing element has a modular configuration with respect to said filter and is removably attached thereto, and wherein only said biasing element would need to be replaced if said biasing element becomes overly worn and the remainder of said filter could continue to be used.
 16. The apparatus according to claim 3 wherein at least a portion of said biasing element is adapted to be slidably mounted to a surface of said main body, and wherein said surface of said main body is adapted to slotably receive at least a portion of said biasing element.
 17. The apparatus according to claim 3 wherein at least a portion of said main body of said liner is formed from a porous material so as to filter out floating debris in pool water passing through said main body.
 18. The apparatus according to claim 3 wherein said filter has a porous configuration for minimizing drag on water flowing through said filter so as to help minimize any degradation of pool water circulation pump efficiency.
 19. The apparatus according to claim 3 wherein said pool flowing channel has a given configuration, and wherein said filter has a configuration which is different from the given configuration of the said channel of the skimmer system, and wherein said filter may still be substantially flush-mounted in the channel.
 20. The apparatus according to claim 3 wherein said filter includes a base for supporting said filter on the skimmer channel floor so as to create a bypass gap which allows water to pass under said liner, and wherein said bypass gap helps maintain fluid communication between a channel inlet and the skimmer system downstream of said filter, and wherein such a configuration allows continual water flow under said liner in the event that said main body becomes clogged with debris, and wherein the continual flow of water past said filter helps prevent the pool circulation pump from burning out due to a lack of water flow through the pool circulation system.
 21. The apparatus according to claim 20 wherein the combination of said biasing element and said base creating said water bypass gap is configured so as to prevent said filter from being sucked too firmly within the channel when subject to pool pump suction forces, and wherein such a configuration fosters ready removal of said filter if a person's long hair, long necklace, or the like were caught or entangled within said filter.
 22. The apparatus according to claim 20 wherein said base includes at least one standoff being formed from material having buoyant properties or being made in such a way as to have buoyant properties so as to help prevent said filter from sinking, and whereby said base has a dual-function of supporting said filter on the channel floor and buoying said filter in water.
 23. The apparatus according to claim 20 wherein said base is formed by the combination of said at least one standoff and at least one fastening element for detachably mounting a handle to said platform, and wherein said at least one fastening element forms a downwardly extending protrusion which serves as at least one leg of said base.
 24. The apparatus according to claim 23 wherein said at least one fastening element or said at least one standoff is adjustable so as to increase or decrease said bypass gap to vary the suction force on the filter or vary the amount of allowable water flow past the filter.
 25. The apparatus according to claim 3 wherein said filter has a buoyant material selectively attached to said filter to help prevent said filter from sinking.
 26. The apparatus according to claim 4 wherein said platform has at least one angled slat oriented at an angle with respect to the platform so as to help retain debris such as leaves, insects, and the like within the filter.
 27. The apparatus according to claim 4 wherein said platform has a plurality of angled slats oriented at an angle with respect to the platform, and wherein the combination of said plurality of angled slats creates at least one fence structure for entrapping debris such as leaves, insects, and the like within the filter.
 28. The apparatus according to claim 3 wherein said filter includes a handle mounted to said main body so as to foster handling and placement of said filter.
 29. The apparatus according to claim 28 wherein said handle is configured to function as a diverter for separating the flow of water into said filter interior such that incoming water is more equally filtered along the surfaces of the left and right regions of the filter as viewed from the open entrance of said filter.
 30. The apparatus according to claim 28 wherein said handle includes a detachable extension configured to facilitate removing the filter from or installing the filter into said skimmer channel without having to kneel down or reach a hand into the skimmed pool water residue to retrieve or install the filter.
 31. The apparatus according to claim 30 wherein said handle extension comprises a tubular extension, at least one protrusion, and a plate, and wherein said plate is configured to help stabilize said filter in a horizontal mode when manipulating said filter with said handle extension.
 32. The apparatus according to claim 3 wherein said filter includes a trap-wall being detachably mounted to said main body and being configured to foster handling of said filter and also to aid in capturing debris within said filter.
 33. The apparatus according to claim 32 wherein said trap-wall has a multi-function V-shape configuration, and wherein said multi-function, trap-wall is adapted and configured for serving as a handle for carrying and positioning said pool filter, and also for entrapping debris within the interior of said liner so as to prevent the debris from floating back out of the liner, and also for minimizing the possibility of a person—or an unsuspecting child—reaching his or her hand into said filter.
 34. The apparatus according to claim 3 wherein said filter is sized and proportioned having a wedge-shaped configuration so as to have a substantially universal fit into many conventional skimmer channels having a wedge-shaped configuration and so as to conform substantially with the interior shape of a conventional skimmer channel such that said filter is not inadvertently reoriented within said channel.
 35. The apparatus according to claim 3 wherein said filter has a rectangular configuration.
 36. The apparatus according to claim 3 wherein said filter has a triangular configuration.
 37. The apparatus according to claim 3 wherein said filter has a curved configuration.
 38. The apparatus according to claim 3 wherein said filter includes a plurality of bumpers attached to the outer surface of said liner, said bumpers being configured to maintain space between said liner and the inner side walls of the skimmer channel, and wherein said bumpers help prevent said filter from being turned sideways or inadvertently reoriented within the channel and thereby possibly affecting the efficiency of said filter, and wherein said space helps maintain fluid communication between a channel inlet and the skimmer system downstream of said filter so as to foster continual water flow past said filter and downstream into the pool circulation system as well as ready removal of said filter from the channel when a pool circulation pump creates a suction force on said filter.
 39. The apparatus according to claim 3 wherein said filter is substantially formed of a material having a light shade of color or is white so as to enhance the contrast between the color of said filter and any debris, insects, leaves or the like trapped therein, and wherein said color contrast will aid a person in inspecting said filter from a distance in order to confirm whether or not said filter is filled with debris and the like.
 40. The apparatus according to claim 3 wherein at least a portion of said filter is formed of a solid, non-porous material or various materials having suitable properties such as flexibility, rust resistance, corrosion resistance or having a light-weight depending on the environment in which said filter is used.
 41. The apparatus according to claim 3 wherein said filter includes a porous overlay that is removably mounted so as to substantially overlie the interior of said main body and if desired the inner surface of said biasing element to further facilitate cleaning out said filter.
 42. The apparatus according to claim 41 wherein said overlay is formed from a flexible, porous material adapted to be re-used or discarded after using said overlay to help filter pool water containing substances such as slimy algae, oils or lotions, sticky materials, etc., that might otherwise be hard to remove from the surfaces of said filter.
 43. The apparatus according to claim 41 wherein said overlay includes at least one fastening member whereby said overlay may be removably mounted to said filter.
 44. A pool filter apparatus for use with a pool for removing floating debris positioned adjacent or within a pool flowing channel of a skimmer system, and wherein said apparatus is mounted within a skimmer channel so as to be substantially flush-mounted within said channel in order to minimize contact by swimmers or objects floating in the pool, comprising: a liner having a main body adapted for removing floating debris from swimming pool water, at least one flange attached to said main body for preventing said filter from traveling within a skimmer system channel in such a way as to interfere with the operation of said skimmer system; a biasing element for securing said filter at a desired location with respect to said skimmer channel inlet so as to prevent said filter from moving into or floating or sinking in the swimming pool and thereby possibly releasing back into the pool any leaves or debris caught and trapped in said filter; and a handle mounted to said main body so as to foster installing or removing said filter.
 45. The apparatus according to claim 44 wherein said liner has a main body formed from a platform and at least one wall attached to said platform with said at least one wall being oriented in a plane that lies substantially perpendicular to said platform and with said main body being formed from a porous material adapted to filter leaves and debris from incoming pool water as it passes through the main body of said liner.
 46. The apparatus according to claim 45 wherein said biasing element includes a brush mounted to said main body and having bristles extending upwardly in an orientation which is substantially parallel with said at least one wall, whereby said brush forcibly contacts a ceiling of said skimmer channel and whereby an opposing force is transmitted through said filter downwardly against the skimmer channel floor thereby holding said filter substantially in place within the skimmer channel so as to prevent said filter from, moving, floating or sinking in the swimming pool and thereby possibly releasing back into the pool any leaves or debris caught and trapped in said filter.
 47. The apparatus according to claim 44 wherein said filter includes a base for supporting said filter above the skimmer channel floor so as to create a bypass gap which allows water to pass under the liner in the event that debris clogs the interior surfaces of the main body of said liner and prevents adequate water flow therethrough.
 48. The apparatus according to claim 44 wherein said handle includes a detachable extension configured to facilitate removing the filter from or installing the filter into said skimmer channel without having to kneel down or reach a hand into the skimmed pool water residue to retrieve or install said filter.
 49. A method for marketing a secondary swimming pool filter run in tandem with a swimming pool skimmer comprising the steps of: determining a market for a secondary swimming pool filter run in tandem with a swimming pool skimmer having a given configuration; and marketing said secondary swimming pool filter having a configuration which matches the swimming pool skimmer channel configuration.
 50. The method according to claim 49, wherein said secondary swimming pool filter has a wedge-shaped configuration.
 51. The method according to claim 49, wherein said secondary swimming pool filter has a rectangular configuration.
 52. The apparatus according to claim 49, wherein said secondary swimming pool filter has a triangular configuration.
 53. The apparatus according to claim 49, wherein said secondary swimming pool filter has a curved configuration.
 54. A method for using a secondary swimming pool filter run in tandem with a swimming pool skimmer comprising the steps of: using a secondary swimming pool filter having a configuration which matches a swimming pool skimmer channel having a given configuration; and inserting said secondary swimming pool filter having at least one flange into the swimming pool skimmer channel until said at least one flange is flush with a swimming pool wall.
 55. The method according to claim 54, wherein said secondary swimming pool filter has a wedge-shaped configuration.
 56. The method according to claim 54, wherein said secondary swimming pool filter has a rectangular configuration.
 57. The apparatus according to claim 54, wherein said secondary swimming pool filter has a triangular configuration.
 58. The apparatus according to claim 54, wherein said secondary swimming pool filter has a curved configuration
 59. The apparatus according to claim 54, wherein said secondary swimming pool filter has a curved-shaped configuration to be marketed and used for skimmer channels having a different configuration than said curved-shaped configuration, and wherein such a configuration has a flush mounted at least one flange. 